Metal gangway-support for mines.



G. H. BARBOUR. METAL GANGWAY SUP-PORT POR MINES.

APPLIOATION FILED FEB. 25, 1909.

1,009,628. Patented N. 21, 19,11. F57. 2. Fig 1.

Za Zeb 5. f I n.010' 5 6 um @muy COLUMBIA PLANonPAl-H 0., v/ Asl-HNGTON. n. c.

GEORGE H. BARBOUR, 0F PITTSBURGH, PENNSYLVANIA.

METAL GANGWAY-SUPPORT FOR MINES.

Speccation of Letters Patent.

Patented Nov. 21, 1911.

Application filed February 25, 1909. Serial No. 479,962.

To all whom t may concern:

Be it known that I, GEORGE H. BARBOUR, of Pittsburgh, Allegheny county, Pennsyl# Avania, have invented a new and useful Improvement in Meta-l Gangway-Supports for Mines, of which the following is a full, clear, and exact description, reference'being had to the accompanying drawings, forming part of this specification, in which* Figure l is a side elevation showing )one form of my improved construction; Fig. 2 is an end elevation of the same; Fig. 3 is a detail perspective view showing the manner in which the bottom ange on the horizontal beam forming part 'of my improved construction is punched in accordance with my invention; Fig. 4 is -a side elevation showing a modified form of construction.

My invention relatesv to the construction of framing used in mines, tunnels and similar constructions for supporting the roof of such constructions and the invention more particularly relates to the means by which the members forming such framing are secured together and are held in place `in erecting the supports forming the framing. I-Ieretofore wooden timbers have generally been used in constructing such framing, and on account of the increasing Vcost of the wooden timbers, the metal framing can now be economically usedl as a substitute for wood.

The object of my invention is to provide'a metal construction in which the parts form- .ing the framing are secured together without the use Iof bolts or rivets.

Another object of my invention is to provide simple and cheap means for securing the parts together which are formed integral therewith.

In the drawings, 2 represents the kupwardly and inwardly extending struts or posts of the framing which are removably secured on the base plates 6. On top of the struts 2 is a horizontal beam 3, having its bottom flange resting upon the top ends Vof the struts 2,

, the top flange of the beam 3 engaging with and supporting the roof of the constructions in which the framing is placed. In such constructions the width of the gangway or entry varies and in order to accommodate the framing to suit the different widths met with, a series of projections 4 are provided which are struck or bent down out of the bottom flange 3 of the beam 3. These projections are spaced Vapart at such distances that two sets of the projections will engage each with one flange of the beam forming lthe post or strut 2. The base plates 6 Aon inner surface of the tlangeson the edges of the beams. j

When t-he framing as shown in Fig. 1 has been put in place the load transmitted by the horizontal beam 3 to the posts 2 tends to move the post inwardly at their upper ends. This tendency is resisted by the projections engaging with the fianges vof the struts 2 and the struts are securely held in place. rIhe projections 5 on the base plate 6 securely hold the bottom ends of the struts 2 in place on these plates and with any movement of the base plate 6 there must be a correspondingl movement of the strut 2. lThe projections 5 are separated so as to extend on opposite sides of the web of the struts 2, in this way preventing sidewise movement of the post relative to the base plate and the web at the top end of the strut 2 is embraced by the opposite projections 4 in like manner.

In themodications shown inFig. 4 Athe fram-ing is very similar to that shown in Fig. l, the difference being that the struts 2a in this case extend upwardly and outwardly, instead of upwardly and inwardly as in Fig. l. The base plates 6 in Fig. 4 are similar to those in Fig. l and the projections 4a on the beam 3a of Fig. 4 are faced in the opposite direction to those to the projections 4 on the beam 3 of Fig. 1.

The advantages of my invention will be apparent to those skilled in the art. The beams may be fabricated inthe shop in readiness for use, and are assembled in place without the use of bolts or rivets.

Modications in the construction and arrangement of the parts may be made without departing from my invention. The number of the projections and the distances they are apart from each other may be varied without departing from my invention. The shape of the beam 3 may be varied and shapes used other than the rolled beam section shown. The construction of the struts 2 may likewise be changed. Instead of forming the projections on one flange of separate beam 3 or 3a as shown, projections may be formed on both flanges thereof. The projections may be formed so as to extend in one direction on one flange of the beam and in the opposite direction on the other flange, in this Way permitting the construction of either Figs. l or l to be formed with the same framing members.

I claim 1. A metal framing for mines having a beam and posts supporting said beam, flanges on said posts, the beam having a plurality of bent projections on opposite ends formed integrally therewith and arranged to engage the flanges of the posts to secure the posts in position relative to the beam; substantially as described.

2. A metal framing for mines having a beam and posts supporting said beam, the beam having al plurality of pairs of bent projections on each end formed integral therewith arranged to engage with the web and flanges of the post and secure the posts in position relative to the beam; substantially as described.

3. A metal framing for mines having a horizontally extending girder or beam, flanged posts for supporting the girder, a base plate for the bottom of each post, interlocking connections between the flanges of each post and the beam, and interlocking connections between the flanges of each post and its base plate; substantialy as described.

4. In a metal framing for mines a horizontally extending beam member and supports for said beam, the beam having a plurality of integral bent portions on opposite ends of at least one flange arranged toengage with and secure the beam on its support; substantially as described.

5. In a metal framing for mine gangways, a horizontally extending beam and means for supporting the beam, said beam having a plurality of pairs of bent lugs formed integral therewith on each end and arranged to engage with and hold said supports in position relative to said beam; substantially as described.

6. A metal framing for mines, comprising a beam and supporting posts therefor, each of the posts having a plurality of flanges, and a plurality of bent projections on each end of the beam, the projections on the beam being arranged to engage the flanges of the post; substantially as described.

7. A metal framing for mines, comprising a beam and supporting posts therefor, each of the posts having a plurality of flanges, and a plurality of pairs of projections on each end of the beam, each pair of projections on the beambeing arranged to engage the flanges of the 'post; substantially as described.

8. A metal framing for mines, comprising a beam and supporting posts therefor, each of the posts having a pair of flanges, and a pair of bent projections on each end of the beam, the projections on the beam being arranged to engage the flanges of the post; substantially `as described.

In testimony whereof, I have hereunto set my hand.

' GEORGE H. BARBOUR. lVitnesses: WM. J SAUNDERS,

J. C. BILY.

.Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C. 

